<template>
  <div class="login_content">
    <div class="login_box">
      <!--        头像部分-->
      <div class="avatar_box">
        <img src="../assets/logo.png" alt="">

      </div>
      <!--        表单登录-->
      <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" label-width="0" class="login_form">
        <!--        用户名-->
        <el-form-item prop="username">
          <el-input v-model="loginForm.username" placeholder="用户名" prefix-icon="iconfont icon-user"></el-input>
        </el-form-item>
        <!--        密码-->
        <el-form-item prop="password">
          <el-input type="password" v-model="loginForm.password" placeholder="密码"
                    prefix-icon="iconfont icon-3702mima"></el-input>
        </el-form-item>
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLogin">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  name: "Login",
  data() {
    return {
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      // 表单验证规则对象
      loginFormRules: {
        username: [
          {required: true, message: '用户名必须输入', trigger: 'blur'},
          {min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur'}
        ],
        password: [
          {required: true, message: '密码必须输入', trigger: 'blur'},
          {min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur'}
        ]
      }
    }
  },
  methods: {
    resetLogin() {
      console.log(this)
      this.$refs.loginFormRef.resetFields()
    },
    login() {
      this.$refs.loginFormRef.validate(async valid => {
        // console.log(valid)
        if (!valid) return
        const {data: res} = await this.$http.post("login", this.loginForm)
        if (res.meta.status !== 200) {
         this.$message.error('登录失败')
          return
        }else {
          this.$message.success('登录成功')
        //  1.将登录成功的token,保存到客户端sessionStorage中
        //       1.1项目出现登录之外的api接口必须登录才可以使用
        //       1.2 token只应在当前网页打开期间生效,所以将token保存到sessionStorage中
          window.sessionStorage.setItem('token',res.data.token)

        //  2.跳转到主页
          this.$router.push('/home')

        }
      })
    }
  }
}
</script>

<style lang="less" scoped>
.login_content {
  background-color: #2b4b6b;
  height: 100%;
  position: relative;

  .login_box {
    width: 450px;
    height: 350px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);

    .avatar_box {
      width: 130px;
      height: 130px;
      border-radius: 50%;
      border: 1px solid #eee;
      padding: 10px;
      box-shadow: 0 0 10px #ddd;
      position: absolute;
      left: 50%;
      transform: translate(-50%, -50%);
      background-color: #ffffff;

      img {
        width: 100%;
        height: 100%;
        border-radius: 50%;
        background-color: #eee;
      }
    }
  }

}

.login_form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}

.btns {
  display: flex;
  justify-content: flex-end;
}
</style>
